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35 votes
35 votes
Solve the Equation (completing the square)

15 = x^2- 14x

User Anton Savenok
by
2.8k points

1 Answer

23 votes
23 votes

Answer: x = -1, 15

Step-by-step explanation:

15 = x²- 14x

⇒ x²- 14x-15 = 0

⇒ x²- 15x+x-15 = 0

⇒ x (x-15) + (x-15) = 0

⇒ (x-15) (x+1) = 0

Now,

x= -1, 15

User Eemmrrkk
by
2.7k points